lusion, price wars, and bidders’ behavior in auctions. His recent research includes studies of the federal auctions of offshore oil and gas leases and of procurement auctions for highway construction and for school milk, where he has investigated firms’ bidding strategies, the formation of bidding consortia and joint ventures, and statistical methods for detecting the presence of a bid rigging scheme. He received an honors B.A. from the University of Western Ontario in 1976 and a Ph.D. in economics from Princeton University in 1981.
Paul R.Rosenbaum is professor of statistics at the Wharton School of the University of Pennsylvania. His research interests include the design and analysis of observational studies, that is, nonexperimental studies of treatment or program effectiveness; psychometrics, particularly latent variable models for item responses; health services research, with particular reference to health care outcomes; and quality design, particularly the design of dispersion experiments. He is the author of the 1995 book, Observational Studies, in the Springer Series in Statistics, as well as numerous articles. He is an elected fellow of the American Statistical Association and a member of the National Research Council’s Committee on National Statistics. He received a Ph.D. in statistics from Harvard University in 1980.
James Q.Wilson, from 1961 to 1986, was a professor of government at Harvard, and from 1986 to 1997 he was the James Collins professor of management at the University of California, Los Angeles. He is now professor emeritus from the Anderson Graduate School of Management. He is the author or coauthor of 14 books, including Moral Judgment, The Moral Sense, Thinking About Crime, Varieties of Police Behavior, Crime and Human Nature (with Richard J.Hernnstein), Bureaucracy, and On Character. In addition, he has edited or contributed to books on urban problems, government regulation of business, and the prevention of delinquency among children, including Crime and Public Policy, From Children to Citizens: Families, Schools, and Delinquency Prevention (with Glenn Loury), Understanding and Controlling Crime (with David Farrington and Lloyd Ohlin), and Drugs and Crime (with Michael Tonry).